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Post date: May 25, 2014 11:41:27 AM
The photos show a small grade reversal before the start of a broad switchback. The reversal ensures that water flows off the switchback quickly and does not flow down along the track.
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Post date: May 25, 2014 11:41:27 AM
The photos show a small grade reversal before the start of a broad switchback. The reversal ensures that water flows off the switchback quickly and does not flow down along the track.